Nut-lock.



' Witnesses yam.

A. SWANSON.

NUT LOOK. APPLICATION FILED MARJZ, 1907.

909,706. Patented Jan, 12, 1909.

Albz'n Sam/72 3071 alikwlniq ALBIN SWANSON, OF MOLINE, ILLINOIS.

Nu'r LocK.

no eoavoe.

Specification of Letters Patent.

Patented Jan. 1-2, 1909.

Application filed March 12, 1907. Serial No. 362,011.

Toall whom it may concern:

Be it known that I, ALBIN'. SwAnsoN, a citizen of the United States of America, residing at :Moline, in the county of Rock Island and State of Illinois,-1h ave invented new and useful Improvements in Nut-Locks, of which the following is a specification.

This invention relates to nut locks, and one of the principal objects of the same is to provide a lock of'simple' construction which will securely hold a nut upon a bolt.

Another object of this invention is to provide a nut loci: of simple construction which will prevent the nut from turning ofithe bolt, providing means for temporarily holding the nut on the bolt when it is required to further adjust the nut on the bolt or under conditions which require frequentadj ustment of the nut upon the bolt.

These and other objects may be attained by means of the construction illustrated in the accompanying drawings, in which Figure 1 is a side elevation of abolt showing theapplication of the present nut lock thereto. F ig. 2 is a'plan view of the nut lock. Fig. 3 is a view similar to Fig. 1 showing the nut lock in position to perma nently hold a nut.

Referring now more particularly to the drawing, the locking device consists of a washer having a bolt-receiving opening 6 therein, lugs or tongues 8 and oppositely extending lips 7, 'each having formed at one side thereof an auxiliary locking tongue w.

In using the washer, the tongue a: maybe bent up against the side of the nut in cases where frequent adjustments of the nut are desirable, and when" the nut. is fully adjusted and is required to be locked permanently in place, the lips 7 a are bent upward on the line of the slit 10, as shown in Fig. 3. From the construction it will be seen that said lips 7 lie in the plane of the body por tion of the washer when the tongues m are bent to engage the faces of a nut to temporarily lock said nut. The bolt is of the usual construction and is provided at one end with a threaded portion 3 to receive theusual nut 5, and at the otherend the said bolt is provided with a head From the foregoing it will be noted that my nut locking device is of simple construction, and serves to lock the nut firmly upon the'bolt, and to hold the washer firmly in position locked to the material through which the bolt is passed, the latter being accoinplished by reason ofthe fact that the tongues 8 can be bent downwardly to engage suitable recesses in the material ,with which-a boltis engaged. The construction is such that the tongues a lie, as shown in Fig. 1 atan obtuse angle to the plate when in an operative position so that they will yield during the rotation of the nut and lie in the path of movement of the same, to allow the said nut to travel without having to manually depress the tongues. By formingthe plate in the manner shown it is obvious that substantially Vshaped notches 8 are provided so that iently manipulate It has been discovered, that in machines or like places where bolts are employed, the vibration of the machine parts is such that a nut would in time workaway from the surface of the material with. which its bolt is engaged, incident to the compression of the material, due to longitudinal movement of the bolt. By providing the tongues 90 it will be seen that when they are bent to lie at an angle with respect to the washer they lie directly in the path of movement of a nut so that they may engage two of its faces. This action will hold a nut against rotation for considerable time, and when the material with which a bolt is'engaged has become compressed, the lips 7 a are bent outwardly at right angles to permanently and positively engage two faces of a nut.

I claim z i As an article of manufacture, a nut looking washer having a centrally located bolt receiving opening,'washer locking tongues located at the sides of the opening, oppositely disposed nut locking lips extending laterally from the body portion of the washer adapted to normally lie in the plane with the said body portion of said washer and adapted to be bent at right angles to said body portion to be positively engaged with two faces of a nut, and tongues carried by said lips adapted to be bent at an angle to the body portion of the washer while the lips remain inthe plane of the body portion of said washer to lie directly in the path of movement of a nut to engage two of its faces.

ALBIN SVVANSON. Witnesses:

AUGUST LINK, GEORGE E. LANDU.

Elbe lips 7 can be conven- 

